Mild surface modification of para-aramid fiber by dilute sulfuric acid under microwave irradiation

被引:24
作者
Deng, Tingting [1 ,2 ]
Zhang, Guangxian [1 ,2 ]
Dai, Fangyin [1 ,2 ]
Zhang, Fengxiu [3 ]
机构
[1] Southwest Univ, Coll Text & Garments, 2 Tiansheng St, Chongqing, Peoples R China
[2] Chongqing Engn Res Ctr Biomat Fiber & Modern Text, Chongqing, Peoples R China
[3] Southwest Univ, Sch Chem & Chem Engn, Chongqing, Peoples R China
关键词
Para-aramid fiber; sulfonation; surface modification; microwave irradiation; reinforcing material; INTERFACIAL PROPERTIES; PLASMA TREATMENT; COMPOSITES; KEVLAR; FLUORINATION; ULTRASOUND; MORPHOLOGY; PRESSURE;
D O I
10.1177/0040517516639831
中图分类号
TB3 [工程材料学]; TS1 [纺织工业、染整工业];
学科分类号
0805 ; 080502 ; 0821 ;
摘要
In aramid fiber-reinforced composites manufacturing, para-aramid fiber requires surface modification to improve its interfacial adhesion with matrix materials. In this study, aramid fiber was modified with dilute sulfuric acid, which was gradually concentrated under microwave irradiation. Results showed that the aramid fiber could be efficiently modified. Sulfonic acid groups were introduced on the surface of the aramid fiber, as confirmed by X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy. The breaking strength and thermal stability of the modified aramid fiber were not adversely affected. When the concentration of sulfuric acid was 30.0 g/L, the breaking strength of the aramid fiber remained at 90.7% of the original value, and the number of sulfonic acid groups of 1 g modified aramid fibers was 1.38 x 10(-5) mol/g. Thermogravimetric and X-ray diffraction analyses showed that the main structure of the aramid fibers was not affected. The aramid fiber surface was not severely etched, as evidenced by scanning electron microscopy images. Therefore, this modifying method involving a gradual change in sulfuric acid concentration may be widely applied in many fields.
引用
收藏
页码:799 / 806
页数:8
相关论文
共 29 条
[1]   The effects of environmental conditioning on tensile properties of high performance aramid fibers at near-ambient temperatures [J].
Abu Obaid, A. ;
Deitzel, J. M. ;
Gillespie, J. W., Jr. ;
Zheng, J. Q. .
JOURNAL OF COMPOSITE MATERIALS, 2011, 45 (11) :1217-1231
[2]   EFFECT OF SURFACE-LIMITED REACTIONS ON THE PROPERTIES OF KEVLAR FIBERS [J].
BENRASHID, R ;
TESORO, GC .
TEXTILE RESEARCH JOURNAL, 1990, 60 (06) :334-344
[3]  
deLange PJ, 2000, COMPOS PART A-APPL S, V32, P331
[4]  
Denchev Z, 2012, SYNTH POLYM POLYM CO, V8, P251
[5]   Influence of Finish Treatment on the Durability of Aramid Fibers Aged Under an Alkaline Environment [J].
Derombise, Guillaume ;
Van Schoors, Laetitia Vouyovitch ;
Messou, Marie-Fleur ;
Davies, Peter .
JOURNAL OF APPLIED POLYMER SCIENCE, 2010, 117 (02) :888-898
[6]  
DOBB MG, 1977, J POLYM SCI POL PHYS, V15, P2201, DOI 10.1002/pol.1977.180151212
[7]   The Ultrasound-Based Interfacial Treatment of Aramid Fiber/Epoxy Composites [J].
Dong, Huijuan ;
Wu, Jian ;
Wang, Guiying ;
Chen, Zhigang ;
Zhang, Guangyu .
JOURNAL OF APPLIED POLYMER SCIENCE, 2009, 113 (03) :1816-1821
[8]   Effects of different fluorination routes on aramid fiber surface structures and interlaminar shear strength of its composites [J].
Gao, Jie ;
Dai, Yunyang ;
Wang, Xu ;
Huang, Jieyang ;
Yao, Jin ;
Yang, Jin ;
Liu, Xiangyang .
APPLIED SURFACE SCIENCE, 2013, 270 :627-633
[9]   Surface treatment of para-aramid fiber by argon dielectric barrier discharge plasma at atmospheric pressure [J].
Gu, Ruxi ;
Yu, Junrong ;
Hu, Chengcheng ;
Chen, Lei ;
Zhu, Jing ;
Hu, Zuming .
APPLIED SURFACE SCIENCE, 2012, 258 (24) :10168-10174
[10]   MORPHOLOGY AND STRUCTURE OF POLY(P-PHENYLENE TEREPHTHALAMIDE) CRYSTALLIZED FROM DILUTE ORGANIC SOLUTION [J].
JACKSON, CL ;
CHANZY, HD .
POLYMER, 1993, 34 (24) :5011-5015